dup2 706 include/ruby/win32.h #undef dup2 dup2 707 include/ruby/win32.h #define dup2(o, n) rb_w32_dup2(o, n) dup2 27 missing/dup2.c dup2(int fd1, int fd2) dup2 100 win32/win32.c #undef dup2